81458048

素因数分解:

$2^7\times 7^1\times {\mathrm{229}}^1\times {\mathrm{397}}^1$

素因数の和:647

約数の個数: 64

約数和(自身を含む): 186741600

約数和(自身を除く): 105283552

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 229, 397, 448, 458, 794, 896, 916, 1588, 1603, 1832, 2779, 3176, 3206, 3664, 5558, 6352, 6412, 7328, 11116, 12704, 12824, 14656, 22232, 25408, 25648, 29312, 44464, 50816, 51296, 88928, 90913, 102592, 177856, 181826, 205184, 355712, 363652, 636391, 727304, 1272782, 1454608, 2545564, 2909216, 5091128, 5818432, 10182256, 11636864, 20364512, 40729024, 81458048]

約数ペア:

[(1, 81458048), (2, 40729024), (4, 20364512), (7, 11636864), (8, 10182256), (14, 5818432), (16, 5091128), (28, 2909216), (32, 2545564), (56, 1454608), (64, 1272782), (112, 727304), (128, 636391), (224, 363652), (229, 355712), (397, 205184), (448, 181826), (458, 177856), (794, 102592), (896, 90913), (916, 88928), (1588, 51296), (1603, 50816), (1832, 44464), (2779, 29312), (3176, 25648), (3206, 25408), (3664, 22232), (5558, 14656), (6352, 12824), (6412, 12704), (7328, 11116)]